Its similar but I cant see a way of diffing by a commit rather than by a file.
– EvanssOct 4 '17 at 10:30

1

After you install Git History extension, you will get this ability. Command-Shit-P, select Git: View History (git log). You will see all the commits, much like in your first picture. Then you can select the (commited) version you want to compare to.
– igrinisOct 4 '17 at 11:59